Home / 3,754.46-5,629.76-1,288.61

Finding the Fourth Proportional to 3,754.46, 5,629.76 and 1,288.61

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Solution

The fourth proportional to 3,754.46, 5,629.76 and 1,288.61 is: 1,932.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.46 : 5,629.76 = 1,288.61 : x
  2. Step 2: Convert to fraction form
    3,754.46/5,629.76 = 1,288.61/x
  3. Step 3: Cross multiply
    3,754.46x = 5,629.76 × 1,288.61
  4. Step 4: Simplify right side
    3,754.46x = 7,254,558.59
  5. Step 5: Solve for x
    x = 7,254,558.59/3,754.46
  6. Step 6: Final answer
    x = 1,932.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.